A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5945-00-444-1217
NSN 5960-01-537-8161
NSN 6105-00-338-2785
NSN 5960-01-201-6316
NSN 5935-01-384-3835
NSN 5999-00-406-5773
NSN 2925-00-001-4604
NSN 5996-01-378-8532
NSN 5999-01-625-3424
NSN 5999-01-486-4912
NSN 6685-01-293-5714
NSN 5925-00-066-6898